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  1. #31
    Reptilian Snuggletron's Avatar
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    I just switched into a college algebra class...this is going to be embarrassing but I'm scared

  2. #32
    Emperor/Dictator kyuuei's Avatar
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    ((5-3+(6x5)) + (8+2-5)) x 2

    1. 6x5=30, 5-3=2, 2+30=32
    2. 8+2=10-5=5
    3. 32+5=37
    4. 37+37=60+14=74.
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  3. #33
    Emperor/Dictator kyuuei's Avatar
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    Ado - There's nothing embarrassing about being scared of math classes. I feel great pressure from them. I'm currently slowly sifting through a pre-calculus book right now to brush up on everything just to try and lower my anxiety about a year's worth of calculus classes.
    Kantgirl: Just say "I'm feminine and I'll punch anyone who says otherwise!"
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  4. #34
    Senior Member King sns's Avatar
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    ((5-3+(6x5)) + (8+2-5)) x 2

    Parentheses first, of course. 6x5 is thirty
    5-3 is 2
    30+2 is 32
    10-5 is 5
    32+5 is 37.
    37X2 is 74

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  5. #35
    Reptilian Snuggletron's Avatar
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    what was the 'excuse' part again?

  6. #36
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    Quote Originally Posted by Elaur View Post
    My kids were talking about pemdas and I'm like... Nooo it's order of difficulty/order you are taught how to do the math. If I try to remember stuff with acronyms I spend the whole test trying to remember the acronym and if I happen to remember that I spend the whole time trying to remember what the letters stand for. That's if I actually disciplined myself to learn the acronym to start with.

    "order of difficulty/order you are taught how to do the math"

    Parentheses go first, obviously (you probably even learn it last since it's part of the "what order" lesson)
    Exponents go second because they are the last thing you learned in math of the group (and are "hardest")
    Division and multiplication are next, also next in line of learning/hardness scale
    Addition and subtraction you learned first so you are going to do them last.

    It's like peeling an onion, the order you learn them in is covering up the center answer so you have to peel each layer to get to the answer. You can't do addition first because multiplication and division cover that layer up.

    I apparently have issues.

    Does anyone else think like this??
    actually yes that made a lot of sense to me! thank you! never had algebra expained to me like that. think it'll stick!

  7. #37
    Senior Member King sns's Avatar
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    Quote Originally Posted by Adoamros View Post
    what was the 'excuse' part again?
    exponents, I believe
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  8. #38
    Senior Member King sns's Avatar
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    Quote Originally Posted by kyuuei View Post
    Ado - There's nothing embarrassing about being scared of math classes. I feel great pressure from them. I'm currently slowly sifting through a pre-calculus book right now to brush up on everything just to try and lower my anxiety about a year's worth of calculus classes.
    Slightly jealous. I haven't had to take any math since precalc my junior year in highschool and then college stats my senior year. After that since I was in nursing and tested through college math I haven't taken any since, and it was one of my better and more enjoyed subjects. (I spose I could still take it, but would be silly since I don't need it.) I was asked to be on math team and high school but that was wayyy nerdy!! If I went back and did it all over again I woulda been a mathlete, I think.
    06/13 10:51:03 five sounds: you!!!
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  9. #39
    Nips away your dignity Fluffywolf's Avatar
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    ((5-3+(6x5)) + (8+2-5)) x 2

    32+5=37x2=74

    I find the over usage of useless brackets annoying. I just see what's the result from these brackets because they're just too simple. And there really isn't a need for all those brackets.

    (5-3+(6x5)+8+2-5)x2 is what the notation should be.
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  10. #40
    pathwise dependent FDG's Avatar
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    Quote Originally Posted by Fluffywolf View Post
    ((5-3+(6x5)) + (8+2-5)) x 2

    32+5=37x2=74

    I find the over usage of useless brackets annoying. I just see what's the result from these brackets because they're just too simple. And there really isn't a need for all those brackets.

    (5-3+(6x5)+8+2-5)x2 is what the notation should be.
    Definitely. Brackets are only useful insofar as they divide numbers and operations on the basis of order of execution.
    ENTj 7-3-8 sx/sp

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